var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
//路由文件引入进来
var routes = require('./routes/index');
//数据库配置文件信息
var settings = require('./setting');
//flash模块
var flash = require('connect-flash');
//支持会话
var session = require('express-session');

var MongoStore  = require('connect-mongo')(session);
var app = express();
app.use(flash());
app.use(session({
   
    secret:settings.cookieSecret,
    
    key:settings.db,
    
    cookie:{maxAge:1000*60*60*24*30},
    
    store: new MongoStore({
      
        url: 'mongodb://localhost/blog2'
    }),
    resave:false,
    saveUninitialized:true
}));


app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(cookieParser());

app.use(logger('dev'));

app.use(bodyParser.json());

app.use(bodyParser.urlencoded({ extended: false }));

app.use(cookieParser());

app.use(express.static(path.join(__dirname, 'public')));


routes(app);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});

app.listen(app.get('port'), function() {
    console.log('Express server listening on port ' + app.get('port'));
});


module.exports = app;
